22648005 has 20 divisors (see below), whose sum is σ = 40599372. Its totient is φ = 12078720.

The previous prime is 22648001. The next prime is 22648027. The reversal of 22648005 is 50084622.

It can be written as a sum of positive squares in 2 ways, for example, as 16916769 + 5731236 = 4113^2 + 2394^2 .

It is not a de Polignac number, because 22648005 - 2² = 22648001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 22648005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22648001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27556 + ... + 28365.

Almost surely, 2^22648005 is an apocalyptic number.

It is an amenable number.

22648005 is a deficient number, since it is larger than the sum of its proper divisors (17951367).

22648005 is an equidigital number, since it uses as much as digits as its factorization.

22648005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55938 (or 55929 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 22648005 is about 4758.9920151225. The cubic root of 22648005 is about 282.9284698123.

The spelling of 22648005 in words is "twenty-two million, six hundred forty-eight thousand, five".